% Author: Pável Calado
% the tikz-er2.sty package is available at:
% http://tagus.inesc-id.pt/~pcalado/tikzer2/tikz-er2.html


\documentclass[adobefonts]{ctexart}


\usepackage{tikz}
%%<
\usepackage{verbatim}



\begin{document}

\thispagestyle{empty}

\tikzstyle{entity} = [top color=white, bottom color=blue!30, 
                            draw=blue!50!black!100]
\tikzstyle{attribute} = [top color=white, bottom color=yellow!50, 
                               draw=yellow, node
                               distance=1cm,rounded corners=3mm]

\centering

\begin{tikzpicture}[node distance=1.5cm]

  \node[attribute] (kc) {组织知识协同能力};
%一级影响因素
  \node[entity] (env) [left of= kc, xshift=-15mm ] {$X_1$};
  \node[entity] (communication) [above of= env, yshift=10mm ] {$X_2$};
\node[entity] (knowledge) [right of= kc,xshift=15mm,yshift=10mm ] {$X_3$};
\node[entity] (IT) [below of= env, yshift=-20mm ] {$X_4$};
\node[entity] (control) [below of= knowledge , yshift=-10mm] {$X_5$};

%二级影响因素
%env
\node[attribute] (dao) [left of= env,xshift=-35mm] {$x_{11}$};
\node[attribute] (leader) [below of= dao] {$x_{12}$};
\node[attribute] (culture) [above of= dao] {$x_{13}$};
\node[attribute] (culture) [above of= dao] {$x_{14}$};

\end{tikzpicture}
\end{document}
